Fabrication of sandwich aluminum honeycomb panel

aluminum honeycomb panel夹心一般是由0.02~0.1mmMade of thick aluminum foil. The most commonly used thickness is0.03，0.04，0.05. There are two methods for manufacturing aluminum honeycomb panel sandwich. One is the forming method: first, the aluminum foil strips are formed into corrugated strips, and then the corrugated strips are laminated with glue to form aluminum honeycomb panel core blocks. This method is only used for alloy foil with large thickness or rigidity, or special aluminum honeycomb panel sandwich with non-regular hexagon. The other is the stretching method: first coated with adhesive strips on the aluminum foil, then the aluminum foil is laminated, glued into a laminate, and finally stretched into an aluminum honeycomb panel core block. Generally, regular hexagonal or square lattice is manufactured by this method.

The process of manufacturing aluminum honeycomb panel sandwich by tensile method:

1Aluminum honeycomb plate foil surface treatment. Degreasing treatment before coating, generally using solvent vapor degreasing, alkali washing, etc. In order to improve the bonding strength and durability of the aluminum foil, the aluminum foil can also be chemically oxidized, passivated, and phosphorus treated.

2Aluminum honeycomb plate foil gluing. Glue application includes longitudinal strip glue application and horizontal strip glue application.

3, aluminum honeycomb plate foil lamination and curing. Laminate the coated aluminum foil into a stack according to the required number of sheets, and then heat and pressurize in a hot press or hot press tank for curing.

4Stretch forming and processing of aluminum honeycomb panel sandwich core. There are two schemes for this step: stretching before machining the shape and stretching after machining the shape first. The pre-deformation method can be used when the outer curvature of the aluminum honeycomb panel structure is very small. The first shape after the tensile processing is generally applicable to the processing of such as cross-section or straight bus shape of the aluminum honeycomb plate core block.

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